Improvement in machines for seaming cans



R. D. HUME. Machine for Seaming Can.

Patented Oct. 7, 1879.

UNITED STATES PATENT OFFICE.

ROBERT D. HUME, OF SAN FRANCISCO, CALIFORNIA.

IMPROVEMENT IN MACHINES FOR SEAMING CANS.

Specification forming part of Letters Patent No. 220,289. dated October7, 1879; application filed April 2, 1879.

To all whom it may concern:

Be it known that 1, ROBERT D. HUME, of the city and county of SanFrancisco, and State of California, have invented an Improvement inPreparing Oans for Soldering; and I hereby declare the following to be afull, clear, and exact description thereof, reference being had to theaccompanyingdrawings.

My invention relates to certain improvements in machines for theconstruction of the containing-cans for hermetically-sealed goods; andit consists in making the crimping-machine adjustable to crimp cans ofvarying sizes.

Figure 1 is a view of my apparatus. Fig. 2 is a section, showing theadjustable flanges and rims.

In the said drawings, A is a frame, which is secured to any .suitabletable or base. This frame is preferably made in a curved form, and isshown in the present case in the form of a segment of a cylinder havingthe interior are of a length equal to the circumference of the canswhich are to be closed in it. At each end of this frame is a flange, B,of the same curve as the frame, and having the inner edges beveled, asshown. The ends of the frame are adjusted at such a distance apart as toreceive a can between them, and the ends of the can are bent over, sothat their narrow rims rest upon the beveled flanges B. The flanges Bmay be adjusted to or from each other, so as to fit any length of canwhich it is desired to close by any suitable means.

A cylinder, G, is supported upon journals D, so that its axis is in thecenter of the are formed by the frame A, and the periphery E of thiscylinder is at such a distance from the flanges B as to just admit thediameter of the can between them.

It will be seen that when the cylinder is rotated by any suitable power,and the cans are fed into the opening between the cylinder and theflanges on the frame, they will be carried through the space and rotatedby the friction, so as to make one complete revolution. This causes apressure upon the top and bottom rims, which erimps them upon the can,so that they are tight and ready for soldering.

The flanges B are made adjustable to or from each other, so as toreceive a longer or shorter can, and the rims E of the cylinder are alsomade adjustable for the same purpose.

The frame A, from which the flanges B project, is formed in two parts,as shown, and the outer one is slotted, so that it may be moved out orin, and secured at any point by a clampin g-screw, F. The rim E of thecylinder is formed with interior screw-threads, and may be turned out orin upon the body of the cylinder to correspond with the adjustment ofthe flanges. The set-screws G hold this rim at any point of its adjnstment.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

The frame A, with its adjustable ends and flanges B, in combination withthe cylinder 0, with its adjustable rims, whereby the apparatus may befitted to cans of different lengths, substantially as herein described,

ROBERT DENISTON HUME.

Witnesses GEO. H. STRONG, FRANK A. BRooKs.

